summaryrefslogtreecommitdiff
path: root/drivers/serial
diff options
context:
space:
mode:
authorScott Wood <scottwood@freescale.com>2012-10-16 15:43:15 -0500
committerScott Wood <scottwood@freescale.com>2012-11-26 15:41:20 -0600
commit48cbc3a8761fad6624fb63f1d56f09a30322bfd9 (patch)
treeac5d391b32fc15ada0edb97b3d56d95cd1ca9069 /drivers/serial
parent178d0cc1a4c73c3341afbeb2a93b172de8c96bd1 (diff)
downloadu-boot-imx-48cbc3a8761fad6624fb63f1d56f09a30322bfd9.zip
u-boot-imx-48cbc3a8761fad6624fb63f1d56f09a30322bfd9.tar.gz
u-boot-imx-48cbc3a8761fad6624fb63f1d56f09a30322bfd9.tar.bz2
serial/ns16550: don't build serial_ns16550 with MIN_FUNCTIONS
CONFIG_NS16550_MIN_FUNCTIONS is used by small SPLs to gain access to basic ns16550 output code without pulling in things not needed by the SPL. This previously only worked with non-MULTI configs. Recently MULTI was made mandatory, and MIN_FUNCTIONS fails like this: drivers/serial/libserial.o: In function `calc_divisor.clone.0': serial_ns16550.c:(.text.calc_divisor.clone.0+0x24): undefined reference to `get_bus_freq' drivers/serial/libserial.o: In function `_serial_getc': (.text._serial_getc+0x30): undefined reference to `NS16550_getc' drivers/serial/libserial.o: In function `_serial_tstc': (.text._serial_tstc+0x30): undefined reference to `NS16550_tstc' drivers/serial/libserial.o: In function `_serial_setbrg': (.text._serial_setbrg+0x3c): undefined reference to `NS16550_reinit' make[1]: *** [/tmp/u-boot/spl/u-boot-spl] Error 1 make: *** [/tmp/u-boot/spl/u-boot-spl.bin] Error 2 With MIN_FUNCTIONS we don't need anything from this file, so don't build it. The conditional needs to be in the file itself rather than the makefile, because the config symbols are only imported to the makefiles once, not separately for the SPL phase of the build. Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/serial_ns16550.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index c1c0134..fc01a3c 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -31,6 +31,8 @@
#include <serial.h>
+#ifndef CONFIG_NS16550_MIN_FUNCTIONS
+
DECLARE_GLOBAL_DATA_PTR;
#if !defined(CONFIG_CONS_INDEX)
@@ -304,3 +306,5 @@ void ns16550_serial_initialize(void)
serial_register(&eserial6_device);
#endif
}
+
+#endif /* !CONFIG_NS16550_MIN_FUNCTIONS */